Automatic cup-forming machine



C. BARBIER] AUTOMATIC CUP FORMING MACHINE May 20 1924.

Filed om. 28, 1918 1; Shets-Sheet 1 c. BARBIERI AUTOMATIC CUP FORMINGMACHINE May 20 1924. Y 1,495.038

Filed 001/- 28, 1918 ll Sheets-Sheet 2 May '20 .1924. 1,495,038 I c.BARBlER l AUTOMATIC CUP FORMING MACHINE Filed Oct. 2a, 1918 11 Sheets-Sheet 5 naay':zO 1924 C.BAREERI AUTOMATIC CUP FORMING MACHINE Filed Oct.28, 1918 11 Sheets-Sheet 4 May 20 1924. 1,495,038 I C. BARBIERIAUTOMATIC CUP FORMING MACHINE Filed oct; 28, 1918 V 11 Sheets-Sheet 5jig 5 May 20 1924. 1,495,03s

. c. BARBIERI AUTOMATIC CUP FORMING MACHINE Filed 001;. 2a, 1918 11Sheet-Sheetfi May 20 1924. I 1,495,038

, c. BARBIERI I AUTOMATIC'CUP FORMING MACHINE Filed oct 28, 1918 11sheets-Sheet c 56 1. 29 7 gnaw-562M016 May 20 1924. 1,495,038 Y c.BARBIERI AUTOMATIC CUF- FORMING MACHINE Filec ibct. 2a, 1918 11Sheets-Sheet 8 fivezzzoz'.

W655; f-lm May 20 1924. I 1,495,038

c. BARBIERI AUTOMATIC CUP FORMING MACHINE Filed Oct. 28, 1918 11Sheets$heet 9 C. BARBIERI AUTOMATIC CUP FORMING MACHINE Filed Oct. 28.1918 11 Sheets-She et 1 1715915, I ,ifig 19,

May 20 1924. 1,495,038 v c. BARBIERI AUTOMATIQCUP FORMING MACHINE FiledOct. .28 1918- 11 Sheets-Sheet J1 Patented May 26, 1224.

cEsAnE BIEItLoF wAsIIIive ro-N. DISTRICT or ooLUMBIA, ASSIGNOR TOTE-EVOR- Ex MANUFACTURING COMPANY, or o IIcAeo, ILLINOIS, a. conronnmon onLLINOIS.

AUTOMATIC CUIFFORMING MACHINE.

Application filed 'Qctober 28,1918. Serial No. 259,986.

To all whom it may concern: a

Be it known that I, GEsARE BARBIERI, a subject of the King' of Italy,residing at Washington, in the District of Columbia, 5 U. S. A., haveinvented certain new and useful Improvements in an Automatic Cup-Forming Machine, of which the following is 2 and seal the margins of theblank so that the finished cup will permanently retain its shape and befluid tight.

To this end my invention consists in the novel construction, arrangementand combination of partshereinshown and described and moreparticularly;pointed out in the claims. 7 g a In the accompanyingdrawings wherein like or similar reference characters indicate like orcorresponding parts.

Fig. 1 is a front elevation of my device.

Fig. 2 is an elevation of my device seen from .its left hand side. Fig.3 is an elevation of my device seen from its right hand side.

Fig. 4 is a rear elevation of my device. Fig. 5 is a top plan view of myimprovement.

Fig. 6 is a section takensubstantially on line 6-6 of Fig. 1.

Fig. 'F'is an enlar ed section taken substantially on line 7 of Fig. 2.

Fig. 8 is an enlarged section taken substantially. on line 88 of Fig. 2.

line 99 of Fig. 8.

Fig.- 10 is an enlarged section taken substantially on line 1010 of Fig.3.

Fig. 11 is a section taken substantially on line 1111 o f Fig. 10.

Fig. 12 isan enlarged sectiontake'n sub-j stantially on line 12 12 ofFig. 2..

Fig. 9 is a section taken substantially on Fi 13 is an enlarged sectiontaken substantlally on line 13-13 of Fig. 2. v Fig. 14 is an enlargedsection taken substantially on line 14-14 of Fig. 5 showing the severalparts in their relative position at the commencement of an operativecycle of their movements.

i Fig. 15 is a view similar to Fig. 14 showing the several parts intheir relative positions at the completion of an operative cycle oftheir movements.

Fig. 16 is a view similar to Figs. 14 and 15 Showing the several partsin their respective positions at approximately midway of an operativecycle of their movement.

Fig. 17 isa section taken substantially on line 17-17 of Fig. 15.

Fig. 18 is a completedcup as produced by my .improvement. I Fi 19 is apaper blank of the shape upon which my improved forming mac ine isparticularly adapted to operate.

Fig. 20 is a tip or reinforcing member for the side of the cup.

In the form of my device shown in the drawings 1 is the frame or bodyportion of my device having a base 2 and suitable legs or othersupporting means 3-3 rigidly attached to the base 2 for supporting thesame in position. As shown ashaft 4 is rotatably mountedin suitablebearings formed in the lower part of the frame 1 with one end'projectingat the front of the machine and connected by bevel gears 5 and 6 to ashaft 7 the axis of which is substantially in a common vertical planewith the shaft 4. A. cone shaped die or roller 8 is formed to accuratelycorrespond in shape and size to the interior form and size of the cup tobe formed, and is rigidly attached to the projecting end of the shaft4'and provided with suitable means for attaching a blank to the die-soas to conveniently wrap the blank about the die to form a cup. In theform shown a clamp or finger 9 is pivotally mounted upon the rear orlarge end of the forming die 8 as at 10 and a yoke 11 is also. pivotallymounted upon the die as at 12 with its free end pivotally" connected asat 14 to the-fingr 9 so that a movement of the yoke longitudinally ofthe Y shaft toward the die will retract :the finger from the face of thedie while a movement of.

the yoke in the opposite direction will force I the finger toward theface of the die. Any suitable means may be provided for conis, incontact with the face of'the die; and a I pair of rollers 16 areprovided upon the yoke at opposite sides of the center line of the shaft4 each adapted to co-operate with a collar 17 rotatably mou'nted uponthe shaft '4 and adapted to move longitudinally thereof so that amovement of the collar toward the die will retract the finger 9 from theface of the die.

In the preferred construction the shaft 7 is rotatably mounted in abearing 18 which is in turn pivotally attached'at its lower front end asat 19 to a verticallymovab le slide or carriage 20 upon the frame 1 withsuitable means upon the shaft to accurately control its longitudinalposition in the bearing. As shown the gear 6 is mounted at the l forwardend of the bearing 18 with suitable nuts 21-21 upon the shaft engagingthe hub of the gear to accurately control its position. -A"collan 22 isalso provided upon the shaft 7 at the opposite end of the bearing 18with suitable nuts 23-23 upon the shaft to control the position oftheicol lar and permit of convenient adjustment of the shaft7longitudinally vof the bearing 18. In the form shownthe bearing 18 isprovided with an arm 24 at its front end pro-. jecting upward andarranged to engage an adjustable stop 25 upon the carriage. 20'to limitthe pivotal movement of the bearing in one direction and a spring 26 orother suitable resilient means connects the upper rear end of thebearing to the carriage 20 to normally, hold the arm 24 in contact withthe stop 25 yet permit of suitable resilient motion of the bearing whenthe machine is in operation. A pressing-die or roller 27 preferably ofthe same form as the die or roller 8 is rigidly mounted upon the lowerforward end of the shaft '7 in position to co-operate with the formingdie '8 to enga a blank between them with. a substan-v tia ly uniformpressure along the entire engaging surfaces of the dies,

An adjustable stop 28 is provided upon th frame 1 adapted to engagethe'upper end of the carriage 20 to limit the downward movement of thecarriage \and thereby the minimum distance between the dies; andaspring29 or, other suitable resilient means extends from the'carriageupward to a yoke 30 upon the frame 1 to resiliently force the carriagedownward to the stop 28.

Any suitable means may be provided for rotating the shaft 4. As shown ashaft 31 is rotatably mounted in suitable bearingsin the base 2 andconnected by suitable gears 3233 to the shaft 4 for this purpose. Ashaft 34 is also rotatably mounted upon the frame 1 and'connected bygears 35 -36 to the shaft 31 and a cam 37 is provided at the end of theshaft 34 adapted to engage a rollen 38 or other suitable means upon thecarriage 20 to periodically move the carriage upward and separate thedies 8 and 27.

In the preferred construction anarm 40 is provided with a central boss42 rotatably mounted upon a stud 43 upon the carriage 20, and one end ofthe arm 40\is provided with a slotted opening'engaging a stud or pin 41upon the frame 1 so that each ver tica-l movement of the carriage 20will produce acorresponding movement of the free end of the arm 40.Agrod 44 connects the free end of the arm 40to the arm 45 of abell-crankleve'r.45'46 pivotally mounted upon the base 2 as at 47 withthe free end of thesarm 46 forked and'arranged to en-- gage thecollar 17upon the shaft 4 so that each vertical movement of the carriage 20 willforce the collar 17 towards the die '8 thus retracting the finger 9 fromthe face of the die 8. -A suitable notch or indenta- (tion 48 is rovidedin the die 27 toreceive the projecting portion of the finger 9 when theperiphery of the dies are in contact. The movements of the several pantsare so timed that whenthe carriage 20 is raised and the dies are separaed, a blank of suitable form may-be inserted between them and when thedie 8 is'rotated sufiiciently tobringthe finger 9 into engaging positionthe carriage 20 is released and its downward movement per: N mits thefinger 9 to resiliently move toward the face of the die 8 and engage theblank and immediately thereafter the. die 27 will arrive in position toco-operate with the die 8 to engage the blank between them andthecontinued rotation of the dies will accurately ports 51-near the apexof the die, and a mem-;

her-52 isconngcted to the rear end} of the shaft having a passageext-ending longitudinally thereof with suitable transierse openings 53connected therewith.

A sleeve 54 is rotatably mountedupon .the

member 52 having a chamber 55 in its innerwall at the extremitiesof.the\passages 53.

anda pipe 56 (see Fig. 7) is rigidly attached to the sleeve 54 andconnected to thech an ber 55 for directing fluid under pressure into't'he chamber-whence it passes through the openings 53 and centralpassage of the member 52 through passage 50 "to the ports 51 therebyforcing the cup from the die. Any suitable means may be providedforcontrolling the admission of-fluid to the pipe 56. Asshown a valvecasing 57 is attached to the pipe .56 with a passage extending throughthe casing connecting the pipe 56 to the fluid supply pipe 58. -Aclosure 59 isprovided in thecasing with a suitable spring 'or otherresilient means 61 for normally holding the same in closed positionwhile a pin 62 is connected to the closure and projects at the end ofthe casing for forcing the closure from its seat to permit the passageof fluid through the casing. In the form shown a bracket 63 is providedat one side of the casing, and a latch64 is pivotally attached to thebracket 63 and extends beyond the end of the pin 62 into the path of aroller 65 or other suitable means upon the gear 315 so that at eachrotation of the gear the roller engages the endof the latch forcingthesame upward agai met the pin and permitting fluid under pressure,preferably air to pass through'the I casing into the pipe 56 forremoving a cupfrom the die as hereinbefore explained.

In the form shown paraifine or other water proofing material is providedupon one side of each of the blanks-to water-proof the cup and also forattaching the over-la ping portion of the blank to the body of t eformed cup. The arafline or other material is preferably app ied to theside of the blank which will be at the exterior of the cup when'completed. In the preferred form the arafline ;or other coating isslightly heat during theforming operation to facilitate the attachmentof the over-lapping portions of the blank. For this urpose in the formshown a gas burner 67 1s provided connected by' a suitable supply pipe68 to any convenient supply 0 ranged'to' contact with the die 27 and aspring 72 is mounted upon the holder and engages the back of the scraperto resiliently I orce the same against the die.

In the preferred construction also a portion of the tip or apex ofthedie 27 is removed and a stationary block 73 is provided u on theholder adapted to engage the apex o the'cup upon the die 8 andloperate1,4ee,ose

gas or other liquid com. bustible not shown and arranged to direct asuitable flame against the-large end of the. p

' to accurately lay the folds of the blank at the apex of the cup tosecure the most thorough attachment between them.

In the 'preferred construction suitable means are provided formechanically placing the blank in position between the dies so that'thefinger 9 will engage the blank when the finger moves to engagingposition. For this purpose a table 75 is rigidly mounted upon the base 2of my device vby a bracket 76 or other suitable means rigidly attachedto the base-2, and a slide 77 is mounted on suitable guides 78'and 79beneath the table 75 which are supported at their extremities, on thebracket 76. An arm 80 is pivotally mounted in suitable bearings as at81'upon the'bracket 76 with its free end connected by a link 82 to oneof the su orting brackets 83 at the rear of the slide for connecting theslide 77 to the guides so that'each oscillationof the arm 80 will cause'a corresponding longitudinal movement of the slide 77 substantially inthe plane of the meeting surfaces of the dies 8 and 27 i Any suitablemeans may be provided for oscillating the arm 80. In the form shown abell-crank 8485 is mounted upon the with a screw 88 extending throughthe boss and arran ed to normally contact with the shaft 81 with thefree end of the arm .85

part 89 o .the lever 85. The several parts are so constructed andarranged that the spring 86 will-resiliently maintain the screw 88 incontact with the part 89 of the lever 85. The free end of the arm 84 isconnected by a rod 90 pivotally attached thereto to a bell-crank 91-92at the upper part of the frame 1 (see Fig. 3) the pivotal connectionbetween the rod 90 and the axim 91 is preferably adjustable longitudinalas by; means of the screw 93 to adjust the operative length of the arm91 to control the movement of the rod 90 and associated to oscillate thebell-crank 9192. s shown an arm 94 is pivotally connected to the freeend of the arm 92 and provided'near its opposite end with a slot 95adapted to receive a guide 96 projecting at the center of the gear 35while a roller or other suitable means attached to the end of the arm 95engages a. cam slot 98 in the gear to imparta longitudinal movement tothe arm thereby rockin the bell-crank 91-92. Int 1e preferredconstruction the slide 77 is'provided with a raised portion 99 formed toaccurately correspond to the shape of one side of'the blank to be usedin my device so 'thata blank placed upon the slide willbe accuratelyheld in,pos1tion to be presented to the dies. In the form of the blankfor which my. device is particularly, adapted, a portion a near thecenter of the blank proy of the arm,

11c arts. 'Any' suitable means may be rovided jects beyond the adjacentbody portion and is adapted to wrap about the apex of the cupinfinishing the same. This portion of the blank is preferably thrustthrough between the dies sufficiently to permit of rolling the same onthedie at the finish of the forming operation. In order to support thisportion of the blank and insure its proper insertion between the dies anauxiliary slide 100 is mounted on the lower side of the slide 77 with aportion projecting beyond the end of the slide 77 and extending belowthis portion of the blank. The auxiliary slide 100 is arranged to movelongitudinally of the slide 77 with a spring 101 or othersuitableresilient means for nor-' mally holding the auxiliary slide inextended position. However when the main slide 7 7 moves forward ortoward the dies or rollers 8 and 27 sufiic'iently to bring the auxiliaryslide 100 into desired proximity to the dies, a projection 102 upon theauxiliary slide engages a part 103 upon the bracket 76 thereby arrestingthe movement of the auxiliary slide whilethe main slide 7 7 continues tomove forward until it brings the blank upon the slide into the desiledposition between the dies. When this point is reached a part 104 uponthe arm'8O engages a screw 105 or other adjustable stop upon the bracket77 thereby arresting the forward movement of the slide. The projectingportion of the blank in the meantime engages and rests upon anadjustable holder 106 at the opposite side of the die supported by asuitable bracket 107 upon the base 2 of my device.

Inthe form of cup shown a small circular.

piece of paper 115 is attached to the exterior of the cup to slightlyseparate the coated walls of the cups when the cups are nested togetherand also to more securely attach the overlapping portion of the blank tothe body portion of the cup. To secure the most satisfactory resultsitis obvious that this reinforcing piece or tip 115 should bepositionedupon the cup so that its diameter will rest upon the margin116 of the i over-lapping portion of the blank as shown in- Fig. 18.

Any sultable means may be provided to feed the tips 115 one by one tothe device at rigidly secured to the underside of the base 63 119 with apart projecting below the magazine adapted to engage e margins of theaeaaoas tips positioned therein to partially support the same. Suitableguides 121-121 are also provided on the underside of the base 119 and aslide 122 is positioned in the guides adapted to move longitudinallythere-between substantially at right angles to the center line of thedies. In the preferred form the slide 122 consists of a substantiallyflat plate having an opening 123 formed therein of substantially thewidth of the magazine and a tongue 124 upon the plate, projects into theopening 123 on the side adjacent the dies. An off-set portion 125 isalso provided in the plate 122 corresponding in form to the tongue 124and positioned at the op osite side of the opening 123.

Suit-able bearings 126 are provided on the under side of the slide 122at each edge thereof and a shaft 127 is mounted in the 1 bearings with acam-shaped roller 128 rigidly secured thereto between the bearings 126.A pinion 129 .is also rigidly mounted upon the shaft 127 I and adaptedto mesh with a rack 130 rigidly secured to the base 119 so that as theslide 122 is moved transversely of .the magazine. the roller 128 willtraverse the o ening below the magazine and be partial y rotated at eachlongitudinal movement of the slide.

The diameter of the roller 128 and inion 129 are substantially equal sothat t e periphery of the roller willmerely roll upon adjacent thepinion 129.1A flexible tube '132 (Fig. 17) connects the passage 131 to acylmder 133 (Figure 3) rigidly attached to the bracket 76. Suitablemeans, as for exam Ie, the holder 134 is provided upon the 'ame of themachine to support the central portion of the tube 132. A piston 135 isprovided in the cylinder 133 with a piston rbd-136 attached thereto andextending downward through a' guide 137 upon the base of the cylinderand a link 138'is pivotally'attached to a'collar 139 or other suitablemeans upon the piston rod and connects the. piston rod 136to the arm 84so that at each oscillation of the arm 84 the piston 135 is movedlongitudinally of the" cylinder; the'several parts being so formed thateach downward movement of the piston tion in the tube 132.'

Any suitable rneans may be provided for in the cylinder will produce astrong sucgitudinally. The arm 142 is provided with" a cam face at itsupper edge and-a roller 145 "is provided upon the arm 91 adapted toengage the arm 142 at each downward movement of the arm 91. Suitablesprings 146 or other resilient means are provided 16 extending from aprojection 147 upon the arm 142 to a suitable portion of the bracket 140to normally maintain the arm 142 at the upper limit of its movement andthe slide 122 at the limit'of its movement to- 20 wards the dies.- Ascrew 148-or other suitable means is provided upon'the slide adapted toengage the base toaccurately limit the movement of the slide towards thedies.

' The several parts are so constructed and 2.; arranged that when theslide 142 is at the the lower-most tip in the magazine to the face ofthe roller 128 as shown in Fig. 14. Upon further operative movement ofthe machine the slide 122 is moved toward the opposite limit of itstravel, the roller 128 rotating to bend the margin of the tip downwardbelow'the tongue 124 as shown in Fig. 16, the tongue 124 operating tosupport the remaining tips in the magazine while the tipattached-to theroller. 128 is gradually withdrawn until it arrivesat the position shownin Fig. 15 at which time the piston 135, completes its downward strokeand commences its upward movement ,thus restoring the air 'pressureinthe passage 131 and releasing the tip from the roller "128.

An inclined trough'or chute150 is arranged below the magazine 118 andpositioned to receive the tips 115 when released from the roller 128 anddirect the same into the space between-the dies. A finger 151 isprovidedhowever, extending to the lower end of the-chute150 adapted tonormally 'prevent the escape .of the tip from the chute while the fingeris in*its normal position.

' As shown the finger 151 is pivotally. mounted as at 152 upon asuitable bracket with a spring 153 arranged to normally maintain thefinger in position to prevent the escape -.of the tip from the chute. Anarm 154 is rigidly connected 'to the finger 151:with an adjustable shoe155 at its upper face. A

pivotally mounted latch 156 is provided upon the slide 122 adaptedtoengage the shoe 155 when theslide is moving to withdraw a tip from themagazineand tilt the finger as shown in broken lines 'in Fig. 16 out ofits normal position.

A shaft 157 is rotatably mounted at the bottom of the chute 150and ahook 158 .is

rigidly secured to the shaft with its free 7 end projecting through thebottom of the chute substantially at its longitudinal cen-' ter line. Aguardor plate 159 is provided extending from the bottom of the chuteover the hook 158 adapted to prevent the tips from engaging the hook intheir downward movement. .An arm 160 (see Fig. 1) is rigidly attached tothe forward end of the shaft 157 and provided with a slot near its freeend adapted to receive a roller 161 upon the free end of a bell-crank162163 pivotally mounted upon the bracket at tached to the base 119 ofthe magazine. A spring 164 is attached to thefree end of the arm 162 andarranged to normallydraw the arm toward the free end of the, slide 122.The free end ofthe arm.163 is pivotally attached to a 'link'165extending toward the outer end of the slide 122 and supported upon theslide' by the bearing 166 .upon the slide the link 165 having alaterally projecting portion 167 at its free end ada-pted'to engage thebearing 166 as "the slide moves toward the outward limit position atwhich it is desirable to place the tip upon the cupthe dog 156 engagesthe shoe 155 thereby'suddenly removing the finger from its normalposition andpermitting the tip to spring by its own elasticity I intothe space between the dies.

As herein before stated it is desirable thatthe dies should make severalcomplete rotations to properly form the" cup and attach the tip inposition. For this reason it has been found desirable to providemechanism for driving my machine whereby when started the. machine willcon-tinueto operate until one complete cycle of operation is com-.pleted, that is, until a blank removed from the feeding table isdischarged-from the device as a finished cup.

Any suitable mechanism may be provided for this purpose. As'shown a.driving pulley 170 adapted to .be rotatedb a belt or other suitablemeans (not shown-i is loosely mounteduponthe main or driving shaft 31 ofmy device near its end and is provided with a groove 171 at the innerface of its hub having a jaw or stop 172 extending entirely across thegroove and rigidly'secured in positiontherein. A sleeve 173 is rigidlyattached to the shaft 31 in any suitable manner and provided with a boltor pin 171 extending substantially parallel with the shaft 31 with itsouter end projecting into the groove 171 and arranged to engage the jawor stop 172 to rotatively connect the pulley 170 with the sleeve 173. Aspring 175.0r other suitable resilient means is'provided to normallymaintain thezbolt 174 in en 'aging osition. A roller 176 is also provid3 upon the bolt 174 as shown in Fig. 9.

A bracket 17 7 is rigidly mounted'upon the frame of my device and a cam178 provided with a stem 179 is mounted in the bracket 177; the stem 179being adapted to move longitudinally in the bracket with a sprin 180 orother suitable resilient means ten ing to hold the stem at the upperlimit of its movement with the cam 178 in position to engage theroller-17 6 and retract the bolt from the groove 171 thereby disengagingthe bolt 174 from't'he jaw 172 andreleasing thei sleeve 173 from thedriving pulley '170. A

collar 1.81 is rigidly secured to thestem 179 and provided with ashoulder 182'on one side (see Figs. 4 and 8) and a latch 183 is providedin a suitable bearing 184 upon the bracket 177 adapted to engage theshoulder 182- and hold the cam and stem retracted. A trigger 185 ispivotally mounted upon, the bracket 177 as at 186 and connected to thelatch 183 intermediate its ends with the free end of the triggerextending into the path of the projection 187 upon the gear wheel 35 sothat at each rotation of the wheel the projection 187 'will engage thefree enclof the trigger 185 and disengage the latch 183 from theshoulder 182 thereby releasing the cam 17 8 and permitting the same .tooperate, as hereinbefore. described to disengage the driving shaft fromthe pulley 170 and thereby stop themachine. Suitable mechanism as at189' is provided and connected to the lower end of the stem 179 tomanually withdraw the cam from engaging position. A

spring 190 or other convenient means is provided to normally maintainthetrigger 185 and latch 183 in position to engage the shoulder 182 andhold the cam and stem in v the withdrawn position.

Having thus described my improvementit from suitably formed blanks, apair of 811111- is obvious that various immaterial modifications may bemade in my device without departing from the spirit of my invention,hence I do not wish to be understood as limiting myselfto the exact formor construction shown.

What I claim as new and desire to secure by Letters Patent is:

1. In a machine for forming paper cups mesmefrom suitably formed blanks,a pair of similar conical rollers comprisin roller and a pressing rollera apted to .engage a blankbetween them, resilient means tending to forcesaid rollers toward each other, and mechanism for continuously rowaforming tating said rollers, in combination with means co-operating withsaid forming roller for engaging a blank to hold said blank in positionupon said roller'during the forming operation, and means. for separatinsaid rollers and-releasing the cup when the i orming operation iscompleted.

2. n a machine-for forming paper cups from suitably formed blanks, apair of similar conical rollers comprising a forming roller and apressing roller adapted resiliently to engage a blank between them, a

6 movable carriage, a bearmg mounted upon said carriage for supportingsaid pressing.

pressing roller, and mechanism for continuously rotating said rollers,in combination with means'co-operating with said forming roller forengaging a blank to hold said blank in position upon said roller duringthe forming operation, and means for moving said carriage to separatesaid rollers to releasethe cup when the forming operation is completed.I V

1. In a machine for forming paper cups from suitably formed blanks, apair of similar conical rollers comprising a forming roller and apressing'roller adapted to engage a blank between them, a movablecarriage, a, bearing mounted upon said carriage for supporting saidpressing roller,

resilient means partially controlling the position of said bearing, andmechanism for continuously rotating said rollers, 1n combination withmeans formoving said carriage to separate said rollers to'release thecup.

when the ,formingoperation is completed.

5. Ina machine for forming paper cups lar conical rollers comprisin aforming roller and a ressing roller a apted to engage a'blank etweenthem, a movable carriage, a bearing mounted upon said carriage forsupporting said pressing roller, an' adjustable stop adapted to engagesaid hearing to limit the pivotal movement of said bearing, andmechanism for continuously rorotatin UOJ for resentin a blank to saidrollers at a memes tating said rollers, in combination with meansco-operating with said forming roller for engaging a blank to hold saidblank in position upon said roller duringthe forming operation, andmeans for separating said rollers and releasing the cup when the formingoperation is completed.

6. In a machine for forming paper cups from suitably formed blanks, apair of similar conical rollers comprising a forming roller and apressing roller adapted to engage a blank'between them, a movablecarriage, a bearing pivotally mounted upon said carriage for supportingsaid pressing roller, resilient means partially controlling the positionof said bearing, means operatively connected to said rollers forautomatically moving said carriageto change the distance. between saidrollers, a stop adapted to en- ;gage said bearing to limit the pivotalmove ment of said bearing, an adjustable stop for controlling theminimum. distance between said rollers, and mechanism for continuouslyrotating said rollers, in combination with means co-operating with saidforming roller for engaging a blank to hold said blank in positionuponsaid roller during the forn'iing operation, and means forautomatically releasing the cup when the forming operation is completed.4 1

' 7. In a machine for forming cups from suitably formed blanks,.a pairof similar conical rollers comprising a forming roller and a pressingroller? adapted to engage a blank between them, mechanism co-operatingwith the surface of said ressing roller to prevent the accumulation 0material upon said roller, and mechanism for continuously said rollers,in.combination with means or separating said rollers and releasing thecup when the forming operation is completed. j

8. In a machine for forming paper cups from suitably formed blanks, apair of similar conical rollers com risin a forming roller and a ressingro ler a apted to engage a blank etween them, a non-rotatablemember'adapted to co-operate with the apex of, said forming roller toform and sealthe ,tip of said cup, and-mechanism for continuouslyrotatingsaid rollers synchronously, in combination with means for searating said rollers and releasing the cup w en the forming operation iscompleted.

.9. In a machine for forming paper cups from suitably formed blanks, a.pairof similar conical rollers comprisin a. formiiig roller and apiessing roller a a ted to engage a blank tween them, mec anism forcontinuously rotating said rollers, and means pre etermine point in'their rotation, in' combination, with means co-operating with saidforming roller for engagmg a blank to ld s d. l nk in P s tion p androller during the forming-operatiomand means for separating said rollersand releasing the cup when the forming operation is completed.

10. In a machine for forming paper cups from suitably formed blanks, apair of'similar conical rollers comprising a forming roller and ,apressing roller adapted to engage a blank between them, mechanism forcontinuously rotating said 'rollers, and a movable slide provided withmeans for holding a blank in a fixed position for presenting a, blank tosaid rollersat a predetermined po1nt in their rotation, in combinationwith means for releasing the cup When.the forming operation iscompleted.

11. In a machine for forming paper cups from suitably formed blanks, apair of similar conical rollers comprising a forming roller and apressing roller ada ted to en gage -a blank between them, mec anis'm forrotating said rollers, and means connected to said rotating mechanismfor presenting a upon said roller during the :Eormfrom suitably formedblanks, a pair of simi- J lar .conical rolle'rs com rising a formingroller and a pressmgro er ada ted'toengage a blank between them, meca-nismior.

rotating said rollers, and a movable slide provided with means a fixedposition connected to said rotatin mechanism for presenting a blank tov-s'ai rollers at a predetermined point in their ro- 4 tation, incombination with means for releasing the cup when the forming operationis complete.

13. In a machine for forming paper cups fromsuitably formed blanks apair of simi-'- lar .conical rollers comprislng a forming roller and apressing roller adapted to engage a blank between them, and mechanismfor rotating said rollers, in combination with a spring actuated fingerplvotally mounted externally upon and co-operat lng with saidforming-roller for automatically engaging a blank to hold said'blank inposition upon said roller during the forming operation, and means forseparating said rollers and releasing the can when the formlng operationis completed.

14. Ina machlne for forming paper cups:

from suitably formed ;blanks, a pair of similar conical rollerscomprising a forming roller and a pressing roller adapted to engage ablank between them, a movable car-- riage supporting said pressingroller, and

mechanism for rotating said'rollers', 1n-coin bination with a rotatablemember coaapertrt .v

ing with said carriagefor separating isaid 100 for holdingablank-inrollers and releasing the cup when the .formfrom suitably formedblanks, a pair of simi-- ing operation is complete.

15. In a machine for forming paper cups from suitably formed blanks,a'pair of similar conical rollers comprising a forming roller and apressing roller adapted to engage a blank between them, a carriagesupporting said pressing roller, a stop for controlling the minimumdistance between said rollers, resilient means tending to hold saidcarriage against said stop and mechanism f0lr0t3.tl1lg.s3.ld rollers, 1ncombination Wltll means for automatically separating said rollers andreleasing the cup when the forming operation is completed.

, 16. In a machine for forming paper cups from suitably formed blanks. apair of similar conical rollers comprising a forming roller and apressing roller adapted toenbination with means co-operating with said'forming roller for engaging a blank to hold said blank in position uponsaid roller dur-. mg the forming operat1on, and means for.

separating said rollers and releasing the cup when the formingxoperationis completed.

17. In a machine for forming paper cups lar conical rollers comprisin aforming roller and a pressing roller a apted to engage a blank betweenthem, a movable carriage, a bearing pivotally mounted upon said carriagefor supporting said pressing roller, resilient means partiallycontrolling the position of said bearing, a stop adapted to engage saidcarriage to control the minimum I distance between said rollers,reslhent meansengaging said carriage tending to hold the carriageagainst said stop, mechanism for rotating said rollers, and a movableslide provided. with means for holding a blank in a fixed positionconnected to said rotating mechanism,'in combination with means pe-briodically engaging said carriage to separate said rollers and releasethe cup when th forming operation is completed.

18. In amachine for forming paper cups from suitably formed blanks, apair of rollersicomprising a formingroller and a pressing roller adaptedto co-operate to wrap the blank upon the forming roller, and

*means for rotating said rollers, in combination with means forinserting a re-enforcing piece or tip between said rollers at apredetermined point intheforming operation.

19. In a machine forforming papercups from suitably formed blanks, apair of rollers comprising a forming roller and a pressing rolleradapted to co -operate to wrap the blank uponthe forming roller, and

- 20. In a machine for forming paper cups from suitablv formed blanks, apair of rollers comprismg a formmg roller and a pressing roller adaptedto co-operate to Wrap the blank upon the forming roller.- and means foroperating said rollers, in .combination with a magazine for containingreenforcing pieces for said cups, mechanism for automatically'removingsaid pieces from said magazine one by one, andindependent means forpresentmg each piece to said rollers at a predetermined point intheforming operation.

21. In a machine for forming paper cups having a re-enforcing piece ortip on the .side thereof, a magazine for containing said re-enforcingpieces, said magazine having .an opening at its bottom, mechanism forautomatically removing said pieces from said magazine through saidbottom opening one by one, and independent means for presenting eachpiece to the cup at a predetermined point in the forming operation.

, 22. In a machine for forming receptacles from suitable blanks, thecombination of a pairof rollers upon one of which the re- I ceptaclesare formed, means for continuously rotating said rollers, slidable meansfor feeding blanks to said roilers .to be formed'into receptacles, andaux liaryfeed means for springing reinforcing blanks between therollers.

23. Ina machine for forming receptacles from prepared blanks, a pair-'of continuously operating forming rollers, and a plurality of relativelyslidable blank feeding means adapted to transfer a blank to the rollersat a predetermined time in their operation.

24. In a machine for forming receptacles from suitable blanks, thecombination of a pair of forming rollers, a plurality of relativelyslidablefeed? means adapted to trans I of speed whether in contact witheach other the combination of a pair of forming rollers, one of saidrollers being positively driven andthe other being adapted to be broughtinto operative contact with said driven roller at predetermined times,and means connecting both of the rollers whereby they are always.maintained in rotation at equal rates or separated.

. 27. In a cup forming machine, a pair of conical cup forming rollers,means for continuously rotating the same, and a non-rotatable memberadapted to co-operate with the apex of one of said, rollers to form andseal the tip of a cup being formed by vsaid roller.

28. In an automatic cup forming machine the combination of a pair offorming rollers and means for transferring a prepared blank to therollers, said means including a fixed table, a reciprocating slide insaid table, and a spring-held projection on said slide whereby theextending portion ofeach blank is supported in feeding position untilbrought by the slide into close proximity to the forming rollers.

29. In an automatic cup forming machine.

the combination of a pair of forming rollers,

and means for transferring a prepared blank to the rollers, said meansincluding a fixed table, a reciprocating slide in said table, aspring-held projection on said slide whereby the extending portion ofeach blank is supported in feeding position until brought by the slideinto close proximity to the forming rollers, and means'for retarding theforward motion of said extension when the slide is nearing the formingrollers 30. In a cup makin machine, the combination with a pair offormin cones, means for operating the same, slida 1e means for feedingblanks to said cones to beformed into cups, a magazine for reinforcingmembers, a mechanism for discharging a rein- ,forcing member from themagazine, a chute,

a finger for holding the reinforcing member on the chute, means on saidchute for slightly buckling the reinforcing member, and means forautomatically releasing the finger to permit the buckled reinforcingmember to spring between the forming cones.

31. In a cup forming machine, a pair of ,dies comprising a forming coneand a pressinto reinforced receptacles, "and a dischar and s ringingreceptacle lanks and rein orcing b anks into the forming means to,beformed 1 ing meansfor removing the reinforced rev holding means.

35. In a machine for forming reinforced receptacles from blanks, afeeding means for the blanks, a feeding means for the reinforcingmembers, a forming means, and a discharging means for the receptacles,said I forming means including a pair of continuously operated coactingdies.

36.' In a'machine for forming reinforced receptacles from blanks, afeeding means for the blanks, a feedin means for the rein.- forcingmembers, a orming means, and a discharging means for the receptacles,said forming means including a pair of continuously operated coactingdies which are rotateda plurality oftimes in the formation of eachblank.

37. In a machine for forming reinforced receptacles from blanks, afeeding means for the blanks, a feeding means for the reinforcingmembers,'a forming means, and a discharging means for the receptacles,said forming means including a pair of continuously operated coactingdies which are forming means including a pair of'coacting dies, one ofwhich is continuously operated.

39. In a machine for forming reinforced receptacles from blanks, afeeding means for the blanks, a feeding means forthe reinforcingmembers, a forming means; a discharging means for the receptacles, saidforming means including a pair of continuously operated coacting dles,and automatic means for moving said dies into and out of operativerelation.

40'. In a machine from blanks, a slidable feeding means, a continuouslyoperated forming means, a presser geansadapted to co-act therewith, anda s 41. In amachine for forming-receptacles from blanks, a slidablefeeding means, a

a blank holding tea for formingrecptacles idable support for saidpresser .means.

